Lasting tool



Oct. 26, 1937. s, J, FlNN 2,096,738

LAsTING TOOL Filed NOV. Il. 1935 Patented Oct. 26, 1937 UNITED STATES PATENT OFFICE LASTING TOOL Application November 1, 1935, Serial No. 47,844

7 Claims.

'Ihis invention relates to lasting tools, and more particularly to hand pincers for use in pulling uppers over lasts. Such pincers are commonly used to aid in the lasting of shoes or portions thereof in bed-lasting machines, and may be used also to last shoes byhand. Anobject of the present invention is to provide an improved construction such that the margin of the insole or other shoe bottom part over which the upper is lasted (hereinafter sometimes referred to generically as the sole) will be held close against the bottom of the last opposite the portion of the upper where the pull is applied by the pincers, and also such as to facilitate certain movements of the pincers in pulling the upper.

With the above and other objects in View, the construction herein shown comprises a presser foot arranged to rest on the sole with a portion thereof substantially at the edge of the sole to serve as a holddown for the margin of the sole, the jaw members of the pincers being movable relatively to this presser foot about a single axis substantially parallel to the bottom of the last to pull the upper heightwise of the last. The jaw members and the presser foot are accordingly so related that the operator can conveniently position the presser foot in the desired close relation to the edge of the sole and then operate the jaws to pull the upper by a simple swinging movement such as he has been accustomed to heretofore in operating hand pincers. Further to facilitate the positioning of the presser foot initially in the correct relation to the sole, the construction shown includes a spring whereby the presser foot is normally held in a position determined by one of the jaws. In accordance with still another feature of the invention the jaw members are connected to the presser foot in a novel manner such as to permit them to be swung also about an axis extending heightwise Vof the last to pull the upper lengthwise of the edge of the sole without disturbing the presser foot.

The novel features of the invention will now be more particularly described byreference to the accompanying drawing and thereafter pointed out in the claims. Y

In the drawing,

Fig. l is a perspective view illustrating the use of the novel pincers in lasting a shoe in a bedlasting machine;

Fig. 2 shows a portion of the pincers in elevation, with parts broken away, and further illustrates their relation to the shoe;

Fig. 3 is a plan view of the shoe and of portions of the pincers, with other portions shown in section substantiall-yon the line III--III of Fig. 2; and

Fig. 4 is a section on the line IVAIV of Fig. 2.

The novel pincers comprise a pair of members 2 and 4 pivotally connected together by a pin 6, these members being formed at one end to provide a pair of depending upper-gripping jaws 8 and lil and at the other end to provide a pair of handles l2 and i4 for closing the jaws on an upper and for operating them to pull the upper. The members 2 and 4 are supported as hereinafter described on a presser foot I6 arranged to rest on the insole, in lasting a shoe of the illustrated type, with a portion thereof located substantially at the edge of the insole to serve as .a holddown for the margin of the insole. While pincers constructed in accordance with the invention may be used in lasting different portions of a shoe, they are herein illustrated with reference to their use in lasting the ball portion ofa shoe in a bed-lasting machine of the character disclosed in a oopending application of J. C. Jorgensen, Serial No. 34,057, filed on July 31, 1935, such a machine including, in addition to the usual toe wipers I8, side wipers 20 which are operated in succession to wipe the marginal portion of the upper inwardly in locations between the toe portion and the shank portion of the shoe. It will be understood that' the pincers shown are used to pull the upper in one or more locations adjacent to the edge of each wiper 20 just before the wiper is moved inwardly far enough to wipe the margin of the upper over the insole. It is particularly desirable in operating on this portion of the shoe that pressure be applied tothe margin of the insole to insure that it will lie close to the bottom of the last as the wipers are advanced to wipe the upper inwardly, and to control the insole in this manner along a substantial portion of its edge the presser foot I6 is provided with fingers 22 extending therefrom in opposite directions along the edge of theinsole. By reference to Fig. 2 it will be seen that the presser foot also engages the insole in another location spaced a considerable distance inwardly over the insole from its edge-holddown portion.

For connecting the presser foot I6 to the members 2 and 4 there is provided a device or member 24 which is forked at its lower end and is pivotally connected to the presser foot by a pin 2G. Extending upwardly from the forked portion of the member 24 is a cylindrical portion 28 swiveled in a socket in the member 2 and reduced in diameter between its ends to receive a plunger 30 whereby the member 2 and the memberV 24,

areV held in assembled relation. The plunger 30 is mounted in an opening in the member 2 and' is normally held in operative position by a spring 32 which surroundsa diametrically reduced portion of the plunger. This portion of the plunger extends outwardly from the memberrZ and. has therein a hole'34 in which a pin may be inserted to retract the plunger if it is desired to remove the member 24 from the member '2.

It will be seen that when the parts are assembled as shown the members 2 and 4 are movable relatively to the presser foot VI6 about the axis of the Vpin 26, which extends in substantially parallel relation to the bottom of the last, to pull the upper heightwise of the last, the member 24 partaking of any-'such movement of the members 2 `and 4. If it is desired to pull the margin of the upper more orless also lengthwise Vof the edge of the insole, as may sometimes be neces-.

sary in order to adjustv any fullness in the upper along the side of the last, thismay be done by turbing the position of the presserfoot I6, as

illustrated by the full and dotted line positions of the jaws in Fig. 3. The plunger 30 Ybears normally on a flat face 36 (Fig. 4) formed on the cylindrical portion 28 ofthe member 24 to determine anormal relation between the presser foot and the members 2 and 4 with respect to relative movement about the axis of the cylindrical portion 28. I In order-to afford further certainty as to the initial position of the presserY foot and thus further to facilitate the positioning thereof in the correct relation to the edge of the insole, there is provided a spring 38 mounted at one end in an arm 40 of the member 24 and bearing against the presser foot in a recess Y42 provided therein, the spring holding the presser foot normally with its edge-holddown portion against Y that this comparatively light spring yields as the jaws are swung to pull the upper heightwise ofY the last, as also illustrated in Fig. 2.V

. VFrom the foregoing description it will be, seen that there isfprovided a construction Vin which the presser foot is located initially in a' definite relation to the upper-grippingjaws sc that the operator canv readily position it inexactly the right-relation to the edge of the insole, and Vin the use of which the upper may be pulled heightwisev of thelast by a simple swinging movement ofthe jaw members andmay be readily pulled also lengthwise of the edge ofthe insole without kdisturbing the relation of the presser foot to the margin of the insole. By'referenceY to Fig. Y2 of the drawing it will also be seen that theY relation between the upper-gripping portions of the `jaws and thek pin 26 is such that in pulling the 'the 'United states is;

1. A lasting tool forpulling an upper Yover a last comprising members` connectedtogether for relative swinging movements andprovided with a pair of upper-gripping jaws and with a pairof handles for closing Vsaid jaws on an upper and for operating them topull the upper, a presser foot arranged to restV on a sole on the last with a portion thereof'substantially atthe, edge of the sole to serve as a holddown for the margin of the sole, and means connecting said members to the presser foot for swinging movement relatively to the presser foot about a single axis fixed relatively to the presser foot and substantially parallel to the bottom of the last to pull the upper heightwise of the last, the upper-gripping portions of the jaws being located in such relation to said axis asto pull the upper heightwise of the last without any substantial inward pull thereon toward the edge of the sole. 2. A lasting tool for pulling an upper last comprising members connected together for arranged to rest on a sole on the last with a portion thereof Ysubstantially at the edge of the sole to serve asY a holddown for the margin of the sole, a device so 'mounted inV relation to one' of said members as to partake of Vany movement of that member inthe pulling of the upper heightrelative swinging movements and provided with a `pair of upper-gripping jaws and with a pair of 'handles for closing said jaws on an upper and for operating them to pull the upper, a presser foot.V

wise Yof the last, and a direct pivotal connectionV Y between said device and the presser foot affording provisionY for swinging movement of `both members relatively Yto the presser foot about an axis substantially parallel to the bottom of the last to pull the upper, the upper-gripping por- 1 tions of the jaws being located in such relation to said axis as to pull the upper heightwiseof the last without Vany substantial inward* pull thereon Vtoward the edge of Vthe sole.

3. 'jA lasting tool for Vpulling an upper over a last comprising members connected together for relative swinging movements and provided with a pair of upper-gripping jaws and Vwith a pair of handles for closing said jaws on an upper and forY operating them to pull the upper, a presser foot arranged to rest on a sole on the last with a portion thereof Vsubstantially at the edge of the sole to serve as a holddown for the margin of the sole,.means connecting said members to the presserV foot for swinging movement relatively to the presser foot about a single axis substantially par- Vallel to the bottom of the last to pull the upper heightwise of the last, Vand Va spring arranged to hold the presser foot normally against one of said upper-gripping jaws and against the resistance of which said members are movable relatively'to the presserrfoot to pull the upper.

4. A lasting tool for pulling an upper over a last comprising membersl connected together for relative swinging movements and provided with a .pair of upper-gripping jaws and with a pair of .5;

handles for closing saidjaws (manY upper and for operating them to pull therupper, a presserv foot Y the last and also-for swinging movement relav Y' tively to the presser foot to pull the upper in a directionrlengthwiseV of the edge of the sole.

5. A lasting tool for pulling'an upper over a last, comprising members connected together for relative swinging movements and provided with a pairv of upper-gripping jaws and with a pair of handles for closing said jaws on an `upper and for operating them to pull the upper, a presser foot arranged to restl on a sole on the last with aportion thereof substantiallyvat `the vedge of the Cil thereto in a direction to pull the upper lengthwise of the edge of the sole.

6. A lasting tool for pulling an upper over aV last, comprising members connected together for relative swinging movements and provided with a pair of upper-gripping jaws and with a pair of handles for closing said jaws on an upper and for operating them to pull the upper, a presser foot arranged to rest on a sole on the last, and a device connecting said members to the presser foot, said device being pivotally mounted on the presser foot to swing with the members about an axis substantially parallel to the bottom of the last to pull the upper heightwise of the last and having a cylindrical portion thereof swiveled in one of the members to permit the members to swing relatively thereto about an axis at right angles to said first-mentioned axis to pull the upper lengthwise of the edge of the sole.

7. A lasting tool for pulling an upper over a last, comprising members connected together for relative swinging movements and provided with a pair of upper-gripping jaws and with a pair of handles for closing said jaws on an upper and for operating them to pull the upper, a presser foot arranged to rest on a sole on the last to provide a fulcrum support for said members in pulling the upper heightwise of the last with a portion thereof substantially at the edge of the vsole to serve as a holddown for the margin of vthe sole, a connection between said members and the Y presser foot constructed to permit the members to swing relatively to the presser foot about an axis` extending heightwise of the last to pull the upper lengthwise of the edge of the sole, and spring means for normally maintaining said members and presser foot in a denite relation with respect to relative movement about said axis and against the resistance of which the members are thus movable relatively to the presser foot.

SIDNEY J. FINN. 

